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<HEAD><TITLE>xxfi_unknown</TITLE></HEAD>
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$Id: xxfi_unknown.html,v 1.5 2013-11-22 20:51:39 ca Exp $
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<H1>xxfi_unknown</H1>

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<!---------- Synopsis ----------->
<TR><TH valign="top" align=left width=100>SYNOPSIS</TH><TD>
<PRE>
#include &lt;libmilter/mfapi.h&gt;
sfsistat (*xxfi_unknown)(
	SMFICTX *ctx,
	const char *arg
);
</PRE>
Handle unknown and unimplemented SMTP commands.
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<!----------- Description ---------->
<TR><TH valign="top" align=left>DESCRIPTION</TH><TD>
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<TH width="80">Called When</TH>
<TD>xxfi_unknown is called when the client uses an SMTP command
that is either unknown or not implemented by the MTA.</TD>
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<TH>Default Behavior</TH>
<TD>Do nothing; return SMFIS_CONTINUE.</TD>
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<!----------- Arguments ---------->
<TR><TH valign="top" align=left>ARGUMENTS</TH><TD>
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    <TR bgcolor="#dddddd"><TH>Argument</TH><TH>Description</TH></TR>
    <TR valign="top"><TD>ctx</TD>
	<TD>Opaque context structure.
	</TD></TR>
    <TR valign="top"><TD>arg</TD>
	<TD>SMTP command including all arguments.
	</TD></TR>
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<!----------- Return values ---------->
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<TH valign="top" align=left>SPECIAL RETURN VALUES</TH>
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  <TR bgcolor="#dddddd"><TH>Return value</TH><TH>Description</TH></TR>
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     <TD>SMFIS_TEMPFAIL</TD>
     <TD>Reject this command with a temporary error.
     </TD>
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     <TD>SMFIS_REJECT</TD>
     <TD>Reject this command.
     </TD>
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<!----------- Notes ---------->
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<TH valign="top" align=left>NOTES</TH>
<TD>The SMTP command will always be rejected by the server,
it is only possible to return a different error code.</TD>
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Copyright (c) 2006 Proofpoint, Inc. and its suppliers.
All rights reserved.
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By using this file, you agree to the terms and conditions set
forth in the LICENSE.
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